7448b513c
Bartosz Golaszewski
2015-08-25
Subject
libbb: add is_suffixed_with() function
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include/libbb.h+1 -0
| @@ -413,6 +413,7 @@ const char *bb_basename(const char *name) FAST_FUNC; | |
| char *last_char_is(const char *s, int c) FAST_FUNC; | |
| const char* endofname(const char *name) FAST_FUNC; | |
| char *is_prefixed_with(const char *string, const char *key) FAST_FUNC; | |
| + | char *is_suffixed_with(const char *string, const char *key) FAST_FUNC; |
| int ndelay_on(int fd) FAST_FUNC; | |
| int ndelay_off(int fd) FAST_FUNC; | |
libbb/compare_string_array.c+33 -0
| @@ -28,6 +28,25 @@ char* FAST_FUNC is_prefixed_with(const char *string, const char *key) | |
| #endif | |
| } | |
| + | /* |
| + | * Return NULL if string is not suffixed with key. Return pointer to the |
| + | * beginning of prefix key in string. If key is an empty string return pointer |
| + | * to the end of string. |
| + | */ |
| + | char* FAST_FUNC is_suffixed_with(const char *string, const char *key) |
| + | { |
| + | size_t key_len = strlen(key); |
| + | ssize_t len_diff = strlen(string) - key_len; |
| + | |
| + | if (len_diff >= 0) { |
| + | if (strcmp(string + len_diff, key) == 0) { |
| + | return (char*)key; |
| + | } |
| + | } |
| + | |
| + | return NULL; |
| + | } |
| + | |
| /* returns the array index of the string */ | |
| /* (index of first match is returned, or -1) */ | |
| int FAST_FUNC index_in_str_array(const char *const string_array[], const char *key) | |
| @@ -133,4 +152,18 @@ BBUNIT_DEFINE_TEST(is_prefixed_with) | |
| BBUNIT_ENDTEST; | |
| } | |
| + | BBUNIT_DEFINE_TEST(is_suffixed_with) |
| + | { |
| + | BBUNIT_ASSERT_STREQ("bar", is_suffixed_with("foo bar", "bar")); |
| + | BBUNIT_ASSERT_STREQ("foo", is_suffixed_with("foo", "foo")); |
| + | BBUNIT_ASSERT_STREQ("", is_suffixed_with("foo", "")); |
| + | BBUNIT_ASSERT_STREQ("", is_suffixed_with("", "")); |
| + | |
| + | BBUNIT_ASSERT_NULL(is_suffixed_with("foo", "bar foo")); |
| + | BBUNIT_ASSERT_NULL(is_suffixed_with("foo foo", "bar")); |
| + | BBUNIT_ASSERT_NULL(is_suffixed_with("", "foo")); |
| + | |
| + | BBUNIT_ENDTEST; |
| + | } |
| + | |
| #endif /* ENABLE_UNIT_TEST */ | |